Copy the .bin file directly to the root directory of the USB drive (not inside any folder). Flash the Board: Power off the TV board. Insert the USB drive into the board's USB port. Plug in the control keypad.
Unplug the power, remove the USB drive, and turn the board back on. Download M3663 1440x900 General rar
You can typically find this firmware on enthusiast forums, technical blogs, or through sellers on platforms like AliExpress . Copy the
Extract the .rar package and locate the firmware file, which usually has a .bin extension (e.g., LW36A8C05.bin ). remove the USB drive